JP2008171361A - Data transfer system, remote controller, electronic apparatus, and data transfer method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a data transfer system capable of comfortably performing remote control, a remote controller, an electronic apparatus, and a data transfer method. <P>SOLUTION: The remote controller 10 is provided with a remote control signal transmission module 11 for transmitting a remote control signal and a data transmission module 12 for transmitting data in a memory card together with an address in which the data are stored after transmission of the remote control signal or during the transmission of the remote control signal. The electronic apparatus 20 stores data of the memory card which are received by a data receiving module 22 in a storage medium 24 correspondingly to the address. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a data transfer system, a remote operation device and an electronic device, and a data transfer method for transferring data between an electronic device and a remote operation device that operates the electronic device.

  2. Description of the Related Art Conventionally, a memory card is attached to an electronic device such as a television device or an audio device, and the content in the memory card is enjoyed. For example, image data can be confirmed by inserting / removing a memory card containing image data to / from a physical I / F of a television device while controlling switching / selection with a remote controller. However, when the screen of the television device is large, it is very difficult to check the image data by inserting and removing the memory card because the distance is too short. Further, in the case of a large-screen television device, in order to enjoy content away, it is burdensome for the user to go to the memory device until the television device is installed.

  Therefore, it has been proposed to attach a memory card to a remote controller attached to the electronic device and transmit data in the memory card to the electronic device wirelessly (see, for example, Patent Document 1).

JP 2005-333169 A

  However, for example, when a large amount of content data in a memory card is transmitted from a remote controller to an electronic device and the content is played back by the electronic device, there is a time until playback starts due to a write operation to the memory of the electronic device. It was hanging.

  The present invention has been proposed in view of such a conventional situation, and an object of the present invention is to provide a data transfer system, a remote operation device, an electronic device, and a data transfer method that can be comfortably remotely operated. To do.

  In order to solve the above-described problem, a data transfer system according to the present invention is a data transfer system for transferring data in a memory card from a remote operation device having a memory card attached thereto to an electronic device, and the remote operation device described above. Comprises a remote operation signal transmission means for transmitting a remote operation signal, and a transmission means for transmitting data in the memory card together with an address where the data is stored after or during transmission of the remote operation signal, The electronic device includes: a remote operation signal receiving unit that receives the remote operation signal; a receiving unit that receives data and an address in the memory card; and the data in the memory card that is received by the receiving unit. And storage means for storing the information in association with the address.

  The remote control device according to the present invention is a remote control device to which a memory card can be attached, the remote control signal transmitting means for transmitting a remote control signal, and the memory after or during the transmission of the remote control signal. It comprises transmission means for transmitting data in the card together with an address where the data is stored.

  Further, an electronic device according to the present invention is an electronic device operated by a remote operation device with a memory card attached thereto, remote operation signal receiving means for receiving a remote operation signal, data in the memory card, It is characterized by comprising receiving means for receiving the address where the data is stored and storage means for storing the data in the memory card received by the receiving means in association with the address.

  The data transfer method according to the present invention is a data transfer method for transferring data in a memory card from a remote operation device having a memory card attached thereto to an electronic device, wherein the remote operation signal is transmitted from the remote operation device to the electronic device. After the transmission to the device or during the transmission, the transmission step of transmitting the data in the memory card together with the address where the data is stored, and the data in the memory card transmitted in the transmission step to the address And a storage step of storing in association with the storage means.

  According to the present invention, since the data in the memory card attached to the remote operation device is stored in the storage means of the electronic device in association with the address where the data is stored, the address is received from the remote operation device. The remote operation can be comfortably performed only by transmitting the remote operation signal including it.

  Hereinafter, specific embodiments to which the present invention is applied will be described in detail with reference to the drawings.

  FIG. 1 is a block diagram schematically showing a configuration of an example of an embodiment of the present invention. The remote operation system includes a remote operation device 10 such as a remote controller (hereinafter referred to as a remote controller) for remotely operating the electronic device 20 and an electronic device 20 such as a television device.

  The remote operation device 10 stores a remote operation signal transmission module 11 that transmits a remote operation signal to the electronic device 20, a data transmission module 12 that transmits data to the electronic device 20, and a remote operation signal control command or a memory card 14. The control module 13 for managing the received information and the memory card 14 for storing data to be transmitted to the electronic device 20 are provided.

  The remote operation transmission module 11 transmits a remote operation signal to the electronic device 20. The remote operation signal is, for example, an infrared ON / OFF pulse signal, and its width is about several hundreds msec at the maximum.

  The data transmission module 12 transmits data to the electronic device 20. The data transmission module 12 transmits data after or during transmission of a remote operation signal from the remote operation module 11.

  It is preferable to transmit data using the millimeter wave band or the microwave band, which has excellent linearity in the line-of-sight range and is not easily affected by multipath indoors. Thus, when the user points the remote control device 10 toward the electronic device 20, data can be transferred reliably and at high speed.

  In addition, when performing broadband high-speed data transmission using UWB (Ultra Wide Band) or the like capable of high-speed data transfer as a communication method, and millimeter wave band or microwave band, BPSK (Binary Phase Shift) is used as a modulation method. It is sufficient to use a general digital modulation method such as Keying) or QPSK (Quadrature Phase Shift Keying).

  In addition, when transmitting data in the memory card 14, the data transmission module 12 performs burst transfer by connecting a plurality of sets of data and addresses where the data is stored. Thereby, the electronic device 20 can generate a copy of the memory card 14.

  The control module 13 manages control commands for the electronic device 20 and data stored in the memory card 13. For example, when transferring data to the electronic device 20, desired data is read from the memory card 13 via an interface (not shown) and output to the data transmission module 12.

  The memory card 14 is detachably attached to the remote operation device 10. Further, reading / writing of the memory card 14 is controlled by a predetermined file system.

  FIG. 2 is a schematic diagram showing an example of the internal configuration of the memory card. The memory card 14 includes a memory controller 141 and a nonvolatile memory 142. The memory controller 141 accesses the nonvolatile memory 142 by a command from the control module 13. The nonvolatile memory 142 is logically divided into a file management area such as a boot area, a FAT area, and a directory area, and an actual data area in which file data is stored. The boot area stores information related to the entire memory space, and stores, for example, a memory capacity and a head address of a directory area. The FAT area stores address arrangement information of data constituting the file data. The directory area stores directory information of all files and head address information of data for storing files. The actual data area stores file data constituting the file in units of addresses.

  When acquiring a file from the memory card 14, the control module 13 acquires data of the boot area and acquires an address of the directory area. Then, the head address of the file data is acquired from the directory area on the actual data area, and the address arrangement information of the file data is acquired from the FAT area. Thereby, the control module 13 can obtain a series of files by sequentially acquiring and connecting the file data.

  The electronic device 20 records a remote operation signal reception module 21 that receives a remote operation signal transmitted from the remote operation device 10, a data reception module 22 that receives data from the remote operation device 10, and recording on the recording medium 24. A control module 23 for controlling and a storage medium 24 for storing data from the remote control device 10 are provided.

  The remote operation signal reception module 21 receives a remote operation signal transmitted from the remote operation device 10, and the data reception module 22 receives data transmitted from the remote operation device 10.

  The control module 23 stores the data in the memory card, which is transmitted together with the address where the data is stored, and the data in the memory card transmitted from the remote operation device 10 in association with the address where the data is stored. . The storage unit 24 is a part of the main memory or a dedicated memory, and stores the data of the memory card 14 received by the data receiving module 22 at, for example, the same address as the memory card 14.

  According to such a remote operation system, the data in the file management area and the actual data area of the memory card 14 attached to the remote operation device 10 is associated with the address of the memory card 14 in the storage means 24 of the electronic device 20. Since it is stored, data processing can be performed simply by instructing with a control command including an address. That is, since all the data in the memory card 14 is copied to the storage means 24, it is not necessary to transmit the data every time a file is selected.

  Next, specific application examples of the present invention will be described. FIG. 3 is a block diagram showing a remote control system including a remote controller 30 that transmits an infrared signal as a remote operation signal and a television device 40 that is remotely operated by the remote controller 30. As a specific example of data transfer of the memory card 14, wireless transfer using a microwave band or a millimeter wave band will be described. The microwave band or the millimeter wave band is a radio wave having a very high frequency, and has propagation characteristics similar to infrared rays in a room. That is, it is highly straight and easily blocked by obstacles. If a UWB (Ultra Wide Band) is applied as a broadband / high data rate wireless communication system using the microwave band or the millimeter wave band, transfer of about 500 Mbps to 2 Mbps is possible.

  The remote controller 30 is equipped with a memory card 31 and can transfer data to the memory card 31 each time an infrared control command is transmitted.

  The television apparatus 40 includes an infrared signal light receiving unit 41, an infrared signal receiving unit 42, a data receiving antenna 43, a data communication unit 44, a control unit 45, a storage unit 46, and a memory card 47. . The television apparatus 40 includes an antenna 48, an analog tuner 49, a digital tuner 50, a demodulator 51, a display driver 52, and a display 53, which are general configurations.

  In this remote control system, the remote controller 30 corresponds to the remote operation device 10 shown in FIG. 1, and the television device 40 corresponds to the electronic device 20.

  The infrared signal received by the remote operation signal light receiving unit 41 is generated as a control command by the infrared signal receiving unit 42 and input to the control unit 45. Data received by the data receiving antenna 43 is demodulated by the data communication unit 44 and input to the control unit 45.

  The control unit 45 includes a moving picture decoder, a still picture decoder, a GUI (Graphical User Interface) host processor, and the like. The moving picture decoder digitally processes the video signal demodulated by the demodulator 51 and the video signal from the storage means 46, the memory card 47, etc., and outputs it to the display driver 52. Further, the still image decoder performs digital signal processing on the image data from the storage means 46, the memory card 47, etc., and outputs it to the display driver 52. The GUI performs OSD (On Screen Display) display or the like in accordance with a control command from the infrared signal receiving unit 42. The host processor stores the data acquired from the data communication unit 44 in the storage unit 46 or the memory card 47. Specific operations will be described later.

  Next, data transfer from the remote controller 30 to the television device 40 will be described. From the remote controller 30, an infrared signal control command is transmitted to the television apparatus 40. Since the infrared light receiving unit 41 is generally attached to the front surface of the television device 40, the user sends a command with the remote control 30 facing the front surface of the television device 40 to be controlled. At this time, a spatial path for data transfer is established. That is, the position and direction of the remote controller 30 are in a state where data transfer is possible.

  Infrared signal transmission and data transfer are performed, for example, at the timing shown in FIG. The control command transmitted from the remote controller 30 is an infrared ON / OFF pulse, and its width is very short and is about 80 msec at the maximum. In this case, the maximum transmission time of the infrared signal is about 100 msec taking the guard time. The guard time is the time for each block in the device to stabilize after the power is turned on, and the system operation to turn off after a certain time after the operation of each block is given. It's time.

  Further, for the convenience of processing in the television apparatus 40, the remote controller 30 causes the television apparatus 40 to be delayed because, for example, the channel switching display is delayed from the reception of the control command or the user needs to transmit the next control command. It will continue for a long time. In addition, it is difficult for the user to place an obstacle between the remote control 30 and the television device 40 and use the remote control 30, and when an obstacle such as a human passes between the remote control 30 and the television device 40. There is also an understanding that no connection is established. Considering these, if the allowable time for the user to point the remote controller 30 at the television device 40 is 0.5 seconds and data transfer is performed following the control by the remote controller 30, a subtraction of about 400 msec is allowed for burst transfer of data. It will be time to do. Therefore, for example, in the case of a transfer rate of 160 Mbps, a maximum of 64 Mbit (= 8 MB) can be transferred each time the remote controller 30 is operated.

  Further, when the data of the memory card 31 is transferred from the remote control 30 to the television device 40, the same memory space as the memory space of the memory card 31 on the remote control 30 side is given to the storage means 46 or the memory card 47 on the television device 40 side. . That is, the remote controller 30 reads data corresponding to the address from the memory card 31, puts a set of the address and data on the radio frame, and transmits it to the television apparatus 40.

  At this time, the wireless function guarantees the correctness of the received data by adding an error correction code to the frame, or media access control such as increasing the guarantee against frame loss by repeatedly transmitting the same frame, for example. It is preferable to perform (MAC) processing. In order to improve wireless efficiency, it is preferable to link a plurality of address and data sets and place them on a frame for burst transfer.

  On the other hand, the television apparatus 40 acquires a set of an address and data from the radio frame and writes the data in its own memory space. By writing the corresponding data to all addresses, all the data in the memory space is made identical on the remote control 30 side and the television device 40 side. The data transmitted from the remote controller 30 may be stored in the storage unit 46 or the memory card 47.

  Next, the operation of the remote control system will be described with reference to the examples shown in FIGS. When the user inserts the memory card 31 into the memory I / F of the remote controller 30, the file system of the remote controller 30 recognizes the space where the boot area, FAT area, directory area, and file area are located.

  When the user turns on the “remote control memory selection button” of the remote controller 30, as shown in FIG. 5A, an infrared signal control command is transmitted, and the television device 40 displays a list of memories, for example. . At this time, the data (boot area, FAT area, directory area, and file data) for the address in the memory card 31 is transferred at a high-speed data rate in the microwave band or millimeter wave band following the control command. Further, when the “remote control memory selection button” is turned on, the remote control 30 recognizes the high-speed transfer mode.

  The television device 40 stores the transferred data in the storage means 46 or the memory card 47 at the same address as the memory card 31. Here, the television apparatus 40 preferably performs transfer completion confirmation, success confirmation, and the like. For example, as shown in the screen example of the television apparatus 40 shown in FIG. 5B, it is preferable to display a removable disk icon when the transfer is completed.

  In the memory selection screen of the television device 40 shown in FIG. 5B, the icon “remote control) removable disk” is displayed, that is, when the transfer is completed, the television device 40 accesses the memory space by the file system. Then, as shown in FIG. 5C, a list of JPEG (Joint Photographic Experts Group) image files in the removable disc is displayed. At this time, the television apparatus 40 reads the directory area of the storage means 46 or the memory card 47. Similarly, the remote controller 30 reads the directory area.

  The remote controller 30 selects file data stored in the memory card 31 in response to a user's button operation, and transmits an operation command including the address of the file data to the television device 40 as an infrared signal. The television apparatus 40 recognizes file data corresponding to the address transmitted from the remote controller 30, and performs selection display and the like as shown in FIG. Thereby, the file data selected by the remote controller 30 and the file data selected by the television device 40 can be matched.

  When displaying a JPEG image file on the television device 40, the television device 40 receives an operation command including an address of file data selected by turning on the “display determination button” of the remote controller 30. Thus, the corresponding JPEG image file data is read from the storage means 46 or the memory card 47 and displayed on the screen as shown in FIG.

  As described above, the data including the file management area and the actual data area of the memory card 31 attached to the remote controller 30 is transferred to the television device 40 in advance, so that the selection and display of the file data can be performed only by the infrared signal control command. Is possible. In other words, the data can be used quickly as if the television device 40 is directly accessing the memory card 31 of the remote controller 30.

  Next, the operation of the remote control system when the amount of memory data is large and data transfer takes a long time will be described with reference to the example shown in FIG. In this example, only data that is actually used as application data is selectively transferred from the remote control 30 to the television apparatus 40. That is, only the file data listed on the screen is selectively transmitted.

  As described with reference to FIG. 4, for example, in the case of a transfer rate of 160 Mbps, a maximum of 64 Mbit (= 8 MB) can be transferred each time the remote controller 30 is operated. If the data amount of the memory card 31 is about 30 MB, four remote control operations are required at a transfer rate of 160 Mbps. Therefore, the remote controller 30 calculates the transfer data amount per burst transfer from the data capacity of the memory card 31 by the file system, and performs transfer in several times. The boot area, the FAT area, and the directory area have a very small amount of data relative to the file data, so that the transmission time can be ignored.

  FIG. 7 is a schematic diagram illustrating an operation example of the remote control system when data is selectively transferred. When the user turns on the “remote control memory selection button” of the remote controller 30, the remote controller 30 calculates the transfer data amount per burst transfer from the data capacity of the memory card 31 by the file system. For example, the transfer data amount per time is set as the data amount displayed as a list on the screen. Thereby, the remote controller 30 can grasp the file data displayed as a list on the television device 40.

  In FIG. 7A, the remote controller 30 transmits a remote control memory selection command of an infrared signal and transfers data in the file management area and data in DSC00001 to DSC00005 stored in the memory card 31. The television apparatus 40 stores the transferred data in the storage unit 46 or the memory card 47 at the same address as the memory card 31. Then, the television apparatus 40 reads the directory area of the storage means 46 or the memory card 47 and displays a list of file data of DSC00001 to DSC00005.

  Next, when a list of the next file data is displayed by scroll operation of the remote controller 30, the remote controller 30 transmits an infrared signal of a scroll command and stores it in the memory card 31 as shown in FIG. The transferred DSC00006 to DSC00010 data is transferred. Then, the television apparatus 40 reads the directory area of the storage means 46 or the memory card 47, and displays a list of file data of DSC00006 to DSC00010.

  The operation shown in FIG. 7C is the same as the operation shown in FIG. 7B. Data is transferred by scrolling the remote controller 30 and the file data of DSC00011 to DSC00015 is displayed in a list on the television device 40. . The operation of selecting and displaying the file data displayed in a list is the same as the operation of FIGS. 6D and 6E.

  As described above, even when the memory data amount is large and not all memory data can be transferred by one burst transfer, the remote controller 30 can transfer the data every time an infrared signal such as scroll is transmitted from the remote controller 30. All the data stored in the memory card 31 attached to the 30 can be transferred to the television apparatus 40.

  According to the present invention, in order to transfer the data in the memory card 31 to the buffer memory or the like inside the television device 40 when the user selects the use of the data in the memory card 31 attached to the remote controller 30, Bidirectional memory access is not required between the remote controller 30 and the television device 40. Therefore, the response to the operation of the remote controller 30 is good, and the operation can be performed with the same feeling as when the memory card 31 is inserted into the physical I / F of the television device 40. In addition, since data transfer is performed with the user pointing the remote control 30 at the television device 40, access failures by the wireless system are few. Furthermore, since the one-way communication can be applied to the wireless system, data transfer can be realized at a very low price without access control.

  Although the best mode for carrying out the present invention has been described above, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the present invention. Of course. For example, in the above embodiment, data is transferred together with the remote operation signal from the remote operation device. However, the present invention is not limited to this. The carrier signal may be transmitted, and the remote control device may receive the unmodulated carrier signal, modulate it, and transfer it as a reflected signal.

It is a block diagram which shows roughly the structure of an example of embodiment of this invention. It is a schematic diagram which shows an example of the internal structure of a memory card. It is a block diagram which shows a remote control system specific example. It is a figure for demonstrating the timing of data transfer. It is a schematic diagram which shows the operation example of a remote control system. It is a schematic diagram which shows the operation example of a remote control system. It is a schematic diagram which shows the operation example of the remote control system in the case of selectively transferring data.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 Remote operation apparatus, 11 Remote operation signal transmission module, 12 Data transmission module, 13 Control module, 14 Memory card 20 Electronic device, 21 Remote operation signal reception module, 22 Data reception module, 23 Control module, 24 Storage medium

Claims (10)

A data transfer system for transferring data in a memory card from a remote control device on which the memory card is mounted to an electronic device,
The remote control device is
Remote operation signal transmitting means for transmitting a remote operation signal;
Transmission means for transmitting the data in the memory card after transmission of the remote operation signal or during transmission together with an address where the data is stored;
The electronic device
Remote operation signal receiving means for receiving the remote operation signal;
Receiving means for receiving the data and address in the memory card;
A data transfer system comprising: storage means for storing data in the memory card received by the receiving means in association with the address.   The remote operation device transmits a remote operation signal including the address from the remote operation signal transmission means, and manages correspondence between data in the memory card and data stored in the storage means. The data transfer system according to claim 1.   2. A data transfer system according to claim 1, wherein said transmitting means performs burst transfer by connecting a plurality of sets of said data and addresses.   4. The data transfer system according to claim 3, wherein the transmission means performs burst transfer of a predetermined amount of data obtained by dividing the data in the memory card every time the remote operation signal is transmitted.   2. The data transfer system according to claim 1, wherein the transmission means transmits data in a file management area and an actual data area of the memory card.   2. The data transfer system according to claim 1, wherein the transmission means transmits data in the memory card using a millimeter wave band or a microwave band.   The data transfer system according to claim 1, wherein the electronic device includes notification means for notifying completion of data transfer in the memory card. A remote control device to which a memory card can be attached,
Remote operation signal transmitting means for transmitting a remote operation signal;
Transmitting means for transmitting data in the memory card together with an address in which the data is stored after or during transmission of the remote operation signal. An electronic device operated by a remote control device with a memory card attached thereto,
Remote operation signal receiving means for receiving a remote operation signal;
Receiving means for receiving the data in the memory card and the address where the data is stored;
An electronic device comprising: storage means for storing data in the memory card received by the receiving means in association with the address. A data transfer method for transferring data in a memory card from a remote control device to which the memory card is mounted to an electronic device,
A transmission step of transmitting data in the memory card together with an address in which the data is stored after or during transmission of a remote operation signal from the remote operation device to the electronic device;
And a storage step of storing the data in the memory card transmitted in the transmission step in a storage unit in association with the address.

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